Decarbonising Precast Concrete Manufacturing

脱碳预制混凝土制造项目是为Laing O'Rourke的Explore Manufacturing现有预制混凝土生产工艺实施深度脱碳干预提供全面的可行性研究，该工艺位于Steetley， Worksop。**战略重点-建筑脱碳**探索制造代表了建筑行业非现场制造的最先进水平。政府通过《建筑业2025》和《建筑业协议》制定的战略目标是提高建筑环境的预制价值，减少50%的碳排放，以及2030年的净零排放目标。有必要进一步实现长期脱碳机会，以满足这一战略方向。建筑业占英国GDP的6%，建筑环境占所有温室气体排放的39%，特别是11%的资产建设的前期隐含碳，因此碳强度将对英国的整体碳使用产生重大影响。将混凝土建筑生产从现场转移到场外（预制）立即对降低建筑中的隐含碳产生重大影响；此外，我们正在寻求通过预制制造过程的深度脱碳来进一步增加这一比例，预计总节省约56%。**我们的项目将调查生产过程的各个方面，从低碳、混凝土、钢材和骨料材料和技术到整体模板和养护系统。这一初步范围将量化、优先考虑和定义预制生产过程的脱碳干预措施，然后将对这些干预措施进行可行性试验，包括结合低碳材料和生产技术来实现制造过程的脱碳。已确定的技术包括低碳混凝土、再生钢筋、再生和替代骨料以及模板系统。这些试验将考虑对材料供应、处理、材料和生产线技术引入、包括固化时间在内的吞吐量考虑以及其他存储和物流问题的影响。可行性研究将以一个影响优先的路线图和商业案例结束，以探索制造的预制混凝土建筑脱碳。这将为行业内的其他人提供一个旗舰案例来复制，从而扩大影响。**高质量团队**该研究将由Laing O'Rourke领导，基于我们的探索制造设施，与以下合作伙伴合作：\*剑桥大学-领导碳量化和脱碳影响优先级\*谢菲尔德大学，先进制造研究中心(AMRC) -过程影响模拟，以了解干预措施的吞吐量和生产力影响

The **Decarbonising Precast Concrete Manufacturing** project is to deliver a comprehensive feasibility study for implementing deep decarbonisation interventions at Laing O'Rourke's Explore Manufacturing existing precast concrete production process, based at Steetley, Worksop.**Strategic priority -- decarbonising construction**Explore Manufacturing represents the state of the art in offsite manufacturing for the construction industry. Government strategy through Construction 2025 and the Construction Sector Deal targets both higher pre-manufactured value and 50% carbon reduction in the built environment as well as a Net Zero 2030 target. There is significant need to further enable long-term decarbonisation opportunities to meet this strategic direction. Construction represents 6% of UK GDP and the built environment contributes 39% of all greenhouse emissions, specifically 11% of the total being upfront embodied carbon from construction of assets {Global Status Report 2017\], so carbon intensity will make a significant impact on overall carbon usage in the UK. Moving concrete building production from in situ to offsite (precast) immediately has a significant impact on lowering embodied carbon in buildings; moreover we are seeking to increase this further by deep decarbonisation of the precast manufacturing process offering anticipated total savings of some 56% .**Comprehensive and systematic feasibility review**Our project will investigate every facet of the production process from low carbon, concrete, steel and aggregate materials and technologies to the overall formwork and curing systems. This initial scoping will quantify, prioritise and define interventions for decarbonisation of the precast production process and will then conduct feasibility trials for these interventions, including incorporation of low carbon materials and production technologies to decarbonise the manufacturing process. Examples of identified technologies include low carbon concrete, recycled reinforcement, recycled and alternative aggregates, and formwork systems. These trials will consider implications into materials supply, handling, materials and technology introduction to production line, throughput considerations including curing time, and other storage and logistics issues.The feasibility study will conclude with an impact prioritised roadmap and business case for decarbonising precast concrete construction at Explore Manufacturing. This will provide a flagship example to others in the industry to replicate thus widening the impact.**High quality team**The study will be led by Laing O'Rourke, based on our Explore Manufacturing facility, in collaboration with the following partners:\*University of Cambridge -- leading the carbon quantification and decarbonisation impact prioritisation\*University of Sheffield, Advanced Manufacturing Research Centre (AMRC) -- process impact simulation to understand throughput and productivity implications of interventions